A light emitting device, a display panel, and a display panel manufacturing method are provided in the embodiments of the present disclosure. The light emitting device includes a first electrode, and second electrode arranged around the first electrode, and the second electrode is symmetrically disposed with respect to the first electrode. A distance from each of points on the second electrode to a center point of the first electrode is equal. When the light emitting device is transferring, any point on the second electrode abuts the corresponding electrode, thereby reducing the difficulty in a mass transfer process of the light-emitting device.
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2. The light emitting device according to claim 1, wherein a PN insulating layer is disposed between the first electrode and the second electrode.
A light emitting device includes a first electrode, a second electrode, and a PN insulating layer positioned between the first and second electrodes. The PN insulating layer is a semiconductor material that contains both p-type and n-type regions, creating a p-n junction. This junction enhances the device's ability to control current flow and improve light emission efficiency. The first electrode is electrically connected to the p-type region of the PN insulating layer, while the second electrode is connected to the n-type region. The PN insulating layer ensures proper charge carrier injection and recombination, leading to stable and efficient light emission. The device may be used in applications such as displays, lighting, or optical communication, where precise control of light output is required. The inclusion of the PN insulating layer helps reduce leakage current and improves the overall performance of the light emitting device by optimizing the electrical and optical properties of the semiconductor material.
3. The light emitting device according to claim 2, wherein the second electrode is arranged around the first electrode, and a distance from each of points on a circumferential line of the second electrode to a center point of the first electrode is equal.
This invention relates to light emitting devices, specifically addressing the challenge of improving light emission uniformity and efficiency in devices with multiple electrodes. The device includes a first electrode and a second electrode, where the second electrode is positioned around the first electrode in a concentric arrangement. The design ensures that the distance from any point on the circumference of the second electrode to the center point of the first electrode is equal, creating a symmetrical and uniform electric field distribution. This configuration enhances light emission consistency and reduces localized heating or current crowding, which can degrade performance. The first electrode may be a central light-emitting element, such as a semiconductor light source, while the second electrode acts as a surrounding conductive layer or ring. The arrangement optimizes charge injection and extraction, improving overall device efficiency and longevity. The invention is particularly useful in applications requiring uniform illumination, such as displays, lighting systems, or optical sensors, where precise control over light distribution is critical. The concentric electrode design minimizes parasitic effects and ensures stable operation under varying conditions.
4. The light emitting device according to claim 3, wherein a width of the first electrode is greater than or equal to a width of the second electrode in a same cross section.
This invention relates to light emitting devices, specifically addressing the challenge of optimizing electrode design to improve performance and efficiency. The device includes a first electrode and a second electrode, where the first electrode has a width that is greater than or equal to the width of the second electrode in the same cross-sectional view. This configuration ensures balanced current distribution and reduces resistance losses, enhancing overall light emission uniformity and device longevity. The electrodes are part of a layered structure that may include a light-emitting layer sandwiched between them, with the first electrode typically serving as an anode and the second as a cathode or vice versa, depending on the device architecture. The width relationship between the electrodes helps mitigate issues like current crowding, which can degrade performance in conventional designs. By maintaining this dimensional relationship, the device achieves more efficient charge injection and extraction, leading to improved brightness and energy efficiency. The invention is particularly useful in organic light-emitting diodes (OLEDs) and other thin-film light-emitting technologies where precise electrode design is critical for optimal operation.
5. The light emitting device according to claim 2, wherein the first electrode has a cylindrical structure, and the second electrode has a circular ring structure.
This invention relates to a light emitting device designed to improve light extraction efficiency and uniformity. The device addresses the problem of inefficient light emission and uneven light distribution in conventional light emitting devices, which often result from suboptimal electrode configurations. The invention features a first electrode with a cylindrical structure and a second electrode with a circular ring structure. The cylindrical first electrode is positioned to surround a light emitting region, while the circular ring-shaped second electrode is arranged concentrically around the first electrode. This configuration enhances light extraction by minimizing light absorption by the electrodes and ensuring uniform current distribution across the light emitting region. The cylindrical structure of the first electrode allows for efficient injection of charge carriers into the light emitting region, while the circular ring structure of the second electrode provides a balanced electrical field distribution. The device is particularly useful in applications requiring high brightness and uniform illumination, such as displays, lighting systems, and optical sensors. The invention improves upon prior art by optimizing electrode geometry to reduce optical losses and enhance device performance.
6. The light emitting device according to claim 2, wherein a preparation material of the P-type contact layer comprises gallium nitride.
A light emitting device includes a semiconductor structure with an active layer for generating light, a P-type contact layer for hole injection, and an N-type contact layer for electron injection. The P-type contact layer is formed from a preparation material containing gallium nitride, which enhances electrical conductivity and hole injection efficiency. The device may also include a substrate, buffer layers, and additional semiconductor layers to improve crystal quality and light extraction. The gallium nitride-based P-type contact layer ensures optimal performance by reducing contact resistance and improving current spreading, leading to higher brightness and efficiency in light emission. This design is particularly useful in LEDs and laser diodes, addressing challenges related to poor hole injection and thermal management in conventional devices. The use of gallium nitride in the P-type contact layer ensures compatibility with the active layer, typically made of gallium nitride-based materials, while maintaining structural integrity and reliability under high-power operation. The device may further incorporate reflective layers or textured surfaces to enhance light extraction efficiency.
7. The light emitting device according to claim 2, wherein a preparation material of the N-type contact layer comprises gallium nitride.
A light emitting device includes a semiconductor structure with an N-type contact layer, an active layer, and a P-type contact layer. The N-type contact layer is formed from a preparation material containing gallium nitride, which enhances electrical conductivity and carrier injection efficiency. The active layer generates light when an electric current passes through the device, while the P-type contact layer facilitates hole injection. The gallium nitride-based N-type contact layer improves electron mobility and reduces contact resistance, leading to higher device performance and reliability. This design is particularly useful in light-emitting diodes (LEDs) and laser diodes, where efficient charge transport and low resistance are critical for optimal light emission. The use of gallium nitride ensures compatibility with other semiconductor layers, enabling stable and efficient operation under varying electrical and thermal conditions. The device may also include additional layers, such as buffer or cladding layers, to further enhance performance. The overall structure is optimized for applications requiring high brightness, energy efficiency, and long operational lifetimes.
9. The display panel according to claim 8, wherein either the first electrode is the N-type electrode, and the second electrode is the P-type electrode, or the first electrode is the P-type electrode, and the second electrode is the N-type electrode.
This invention relates to display panels, specifically addressing the configuration of electrodes in such panels to improve performance. The display panel includes a first electrode and a second electrode, where the first electrode is either an N-type electrode and the second electrode is a P-type electrode, or vice versa. The electrodes are arranged to form a junction that enhances the panel's functionality, such as improving charge transport, reducing power consumption, or increasing efficiency. The panel may also include additional layers or components that interact with these electrodes to achieve the desired display characteristics. The specific arrangement of N-type and P-type electrodes ensures optimal electrical properties, such as efficient carrier injection or improved light emission, depending on the display technology used. This configuration is particularly useful in organic light-emitting diode (OLED) displays or other advanced display technologies where precise control of electrode properties is critical. The invention aims to solve issues related to inefficiency, high power consumption, or poor performance in conventional display panels by optimizing the electrode types and their arrangement.
10. The display panel according to claim 9, wherein the second electrode is arranged around the first electrode, and a distance from each of points on a circumferential line of the second electrode to a center point of the first electrode is equal.
This invention relates to display panel technology, specifically addressing the challenge of improving the uniformity and efficiency of light emission in display panels. The display panel includes a first electrode and a second electrode, where the second electrode is positioned around the first electrode in a manner that ensures all points on the circumferential line of the second electrode are equidistant from the center point of the first electrode. This arrangement enhances the electrical field distribution between the electrodes, leading to more uniform light emission and improved display performance. The first electrode is configured to emit light when an electric field is applied between the first and second electrodes. The second electrode's symmetrical placement around the first electrode ensures consistent electrical field strength across the display area, reducing variations in brightness and color uniformity. This design is particularly useful in applications requiring high-quality visual output, such as high-resolution displays, OLED panels, and other advanced display technologies. The invention focuses on optimizing the electrode configuration to achieve better efficiency and reliability in display panels.
11. The display panel according to claim 10, wherein a width of the first electrode is greater than or equal to a width of the second electrode.
A display panel includes a first electrode and a second electrode, where the first electrode has a width that is greater than or equal to the width of the second electrode. The display panel is designed to address issues related to uniformity and efficiency in display performance. The first electrode and second electrode are part of a structure that may include a substrate, an insulating layer, and a light-emitting layer. The first electrode is positioned on the substrate, and the second electrode is positioned above the first electrode, separated by the insulating layer. The light-emitting layer is positioned between the first and second electrodes. The width relationship between the first and second electrodes ensures optimal electrical and optical properties, improving display brightness and reducing power consumption. The design may also include additional layers or components to enhance performance, such as a reflective layer or a color filter. This configuration is particularly useful in organic light-emitting diode (OLED) displays, where precise control of electrode dimensions is critical for achieving uniform emission and high efficiency. The invention aims to provide a more reliable and efficient display panel by optimizing the electrode dimensions.
12. The display panel according to claim 8, wherein the first electrode is the N-type electrode, the first electrode is arranged in abutment with the ground terminal, and the second electrode is arranged in abutment with the source electrode.
A display panel includes a first electrode and a second electrode, where the first electrode is an N-type electrode. The first electrode is positioned adjacent to a ground terminal, and the second electrode is positioned adjacent to a source electrode. This configuration ensures proper electrical connection and signal transmission within the display panel. The N-type electrode is typically used to facilitate electron flow, improving conductivity and reducing resistance in the circuit. The arrangement of the first and second electrodes relative to the ground and source terminals optimizes the electrical path, enhancing the display panel's performance by minimizing signal loss and improving response time. This design is particularly useful in high-resolution or high-speed display applications where efficient electron flow and stable grounding are critical. The abutment of the electrodes with their respective terminals ensures reliable electrical contact, reducing the risk of disconnections or signal degradation over time. The overall structure supports efficient power distribution and signal integrity, contributing to a more stable and responsive display.
13. The display panel according to claim 8, wherein the second electrode is the N-type electrode, the second electrode is arranged in abutment with the ground terminal, and the first electrode is arranged in abutment with the source electrode.
This invention relates to display panels, specifically addressing the arrangement of electrodes to improve performance and reduce interference. The display panel includes a first electrode and a second electrode, where the second electrode is an N-type electrode. The second electrode is positioned in direct contact with a ground terminal to enhance electrical stability and reduce noise. The first electrode is positioned in direct contact with a source electrode, ensuring efficient signal transmission and minimizing signal loss. This configuration optimizes the electrical connections within the display panel, improving overall functionality and reliability. The arrangement helps prevent signal degradation and ensures consistent performance by maintaining proper grounding and signal integrity. The invention is particularly useful in high-resolution or high-frequency display applications where electrical interference and signal quality are critical. The direct abutment of the electrodes with their respective terminals eliminates the need for additional conductive pathways, simplifying the design and reducing manufacturing complexity. This electrode arrangement is part of a broader display panel structure that may include additional layers or components to support its operation. The invention focuses on the specific placement of the electrodes to achieve improved electrical characteristics without altering the fundamental display technology.
14. The display panel according to claim 8, wherein a black matrix layer is disposed above the TFT device.
A display panel includes a thin-film transistor (TFT) device and a black matrix layer positioned above the TFT device. The black matrix layer is used to block light in non-display areas, improving contrast and preventing light leakage. The TFT device controls the operation of pixels in the display panel, such as switching and driving pixel electrodes. The black matrix layer is typically made of a light-absorbing material and is patterned to align with the gaps between pixel electrodes, ensuring that only the active display areas emit light. This configuration enhances display quality by reducing unwanted light reflection and improving color purity. The black matrix layer may also serve as a barrier to protect underlying layers from external contaminants or damage. The display panel may be part of a liquid crystal display (LCD), organic light-emitting diode (OLED), or other flat-panel display technology. The arrangement ensures efficient light modulation while maintaining structural integrity and performance.
15. The display panel according to claim 14, wherein a second encapsulation layer is disposed above the black matrix layer and the light emitting device.
A display panel includes a substrate with a light emitting device and a black matrix layer. The black matrix layer is positioned to block light from non-emissive regions of the display. A first encapsulation layer is formed over the light emitting device to protect it from environmental factors. A second encapsulation layer is disposed above both the black matrix layer and the light emitting device, providing additional protection and structural integrity. The second encapsulation layer may be formed from a material that enhances barrier properties, such as preventing moisture or oxygen ingress, which could degrade the light emitting device over time. The black matrix layer may be patterned to align with the light emitting device, ensuring precise light blocking and improving contrast. The display panel may be part of an organic light emitting diode (OLED) display, where the light emitting device is an OLED element. The second encapsulation layer may also serve to planarize the surface, reducing defects and improving uniformity in subsequent processing steps. The combination of the first and second encapsulation layers provides a robust barrier system, extending the lifespan of the display panel. The black matrix layer may be formed from a light-absorbing material, such as a black resin or metal, to effectively block stray light and enhance display performance.
17. The display panel according to claim 8, wherein the first electrode has a cylindrical structure, and the second electrode has a circular ring structure; and wherein a circumferential line of the second electrode is in a circular shape.
A display panel includes a first electrode with a cylindrical structure and a second electrode with a circular ring structure, where the circumferential line of the second electrode forms a circular shape. The cylindrical first electrode extends along a vertical axis, while the circular ring-shaped second electrode surrounds the first electrode, creating a concentric arrangement. This configuration allows for efficient electric field distribution, improving display performance by enhancing uniformity and reducing optical distortion. The cylindrical structure of the first electrode enables precise control of the electric field, while the circular ring structure of the second electrode ensures even field distribution around the perimeter. This design is particularly useful in display technologies requiring high-resolution imaging and minimal interference from stray electric fields. The circular symmetry of the second electrode minimizes edge effects, leading to better pixel uniformity and contrast. The arrangement also facilitates manufacturing by simplifying alignment and assembly processes. The invention addresses challenges in display panel design, such as field uniformity and optical distortion, by optimizing electrode geometry for improved performance.
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June 8, 2021
June 4, 2024
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